[SRU] [linux-oem] [PATCH 0/4] Update btusb reset-resume quirk to decrease power usage

Kai-Heng Feng kai.heng.feng at canonical.com
Mon Apr 23 09:07:49 UTC 2018


BugLink: https://bugs.launchpad.net/bugs/1766197

[Impact]
USB reset-resume quirk prevents the device from runtime suspending,
which increases power usage.

[Test]
With the patch, the power consumption decreases 0.5W.
The tested machine doesn't need the quirk to make btusb work.

[Fix]
Update the btusb reset-resume quirk with a DMI based version, which can
be more specific.

[Regression Potential]
Low.
Everthing is in mainline, and I haven't seen any new report about this
issue for some time.

Hans de Goede (2):
  Bluetooth: btusb: Use DMI matching for QCA reset_resume quirking
  Bluetooth: btusb: Remove Yoga 920 from the
    btusb_needs_reset_resume_table

Kai-Heng Feng (2):
  UBUNTU: SAUCE: Revert "usb: quirks: Add reset-resume quirk for Dell
    DW1820 QCA Rome Bluetooth"
  Bluetooth: btusb: Add Dell OptiPlex 3060 to
    btusb_needs_reset_resume_table

 drivers/bluetooth/btusb.c | 25 +++++++++++++++++++------
 drivers/usb/core/quirks.c |  3 ---
 2 files changed, 19 insertions(+), 9 deletions(-)

-- 
2.17.0





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